ServersActivity: Move actions to overflow menu.

app/src/main/res/menu/servers.xml

@@ -22,20 +22,14 @@ along with Yaaic.  If not, see <http://www.gnu.org/licenses/>.
 <menu xmlns:android="http://schemas.android.com/apk/res/android">
     <item
         android:id="@+id/add"
-        android:title="@string/add_server_menu"
-        android:icon="@drawable/actionbar_add"
-        android:showAsAction="ifRoom|withText" />
+        android:title="@string/add_server_menu" />
     <item
         android:id="@+id/settings"
-        android:title="@string/settings_menu"
-        android:icon="@drawable/actionbar_settings"
-        android:showAsAction="ifRoom|withText" />
+        android:title="@string/settings_menu" />
     <item
         android:id="@+id/disconnect_all"
-        android:title="@string/disconnect_menu"
-        android:icon="@android:drawable/ic_menu_close_clear_cancel" />
+        android:title="@string/disconnect_menu" />
     <item
         android:id="@+id/about"
-        android:title="@string/about_menu"
-        android:icon="@android:drawable/ic_menu_help" />
+        android:title="@string/about_menu" />
 </menu>